PurposeThis paper examines the development of green skills across firms located in an institutional context, specifically the national education and skill-formation system, of the under-researched developing country of Thailand.Design/methodology/approachThis paper qualitatively explores the Thai education and skill-formation system and conducts a cross-case analysis of four firms across different industries in Thailand. The empirical findings in this paper draws on semi-structured interviews with various stakeholders; field visits to vocational colleges, universities, a nongovernmental organization (NGO) and firms across industries both in Bangkok and in other provinces in Thailand; and a review of archival documents and web-based reports and resources.FindingsThis paper proposes that firms across industries in Thailand must be responsible for helping their employees/workers obtain the green knowledge and skills necessary to perform green jobs through high-road human resource (HR) practices in response to the fact that the Thai education and skill-formation system is unlikely to produce a sufficient number of employees/workers who have green knowledge, skills and abilities and are industry-ready to perform green jobs, leading to a shortage of employees/workers who possess green skills in the labor market. Specifically, curricula in vocational colleges and universities in Thailand are not likely to respond to the needs of firms in producing those employees/workers.Research limitations/implicationsThe limitations of this research concern its methodology. This research is based on the qualitative studies of the Thai education and skill-formation system and a case study of firms across industries in Thailand. Thus, this paper does not aim to generalize the findings to all other countries but to enrich the discussion on the effects of macro-level HR policies on the creation of green jobs and the development of green skills across firms in each country. Additionally, it is difficult to gain access to firms across several industries and various stakeholders to understand the development of green skills among employees in these firms. The reasons are resource constraints, time constraints and the hesitation of firms in permitting the author to access the data. These difficulties have restricted the sources of information to construct a more nuanced picture of firms across various industries in developing green skills among their existing employees. Consequently, this research does not include firms in several other industries, including the pulp and paper industry, textile and garment industry, plastic industry and agri-food industry. Thus, future research may extend the topic of the development of green skills among employees to these industries. Quantitative studies using large samples of firms across industries may also be useful in deepening the understanding of this topic, which is significant from the perspectives of the strategic human resource management (SHRM), comparative institutional perspectives on HR strategies and practices, and green economy.Practical implicationsThis paper also provides practical implications for top managers and/or HR managers of firms in Thailand, other developing countries and other emerging market economies with deficiencies in the national education and skill-formation system. First, the top managers and/or HR managers can apply various methods to internally develop managers and employees/workers with the appropriate environmental/green knowledge and necessary skills to perform green jobs. The methods include classroom training, on-the-job training, coaching, mentoring systems, job shadowing and being role models for younger generations of employees. Second, these top managers and/or HR managers can cooperate with vocational colleges and/or universities in their countries to design educational programs/curricula related to environmental/green management to be able to produce graduates with suitable qualifications for their firms. These managers can request for assistance from universities in their countries when their firms confront sophisticated questions/problems related to environmental/green management. In this regard, universities will have an opportunity to solve real environmental/green problems experienced by industries, while firms can appropriately and accurately solve environmental/green questions/problems. Third, these top managers and/or HR managers can encourage their firms to apply for certificates of green-/environmentally friendly products or carbon footprint labels from NGOs to foster a green image among firms' consumers. These applications require the firms to pay special attention to the cultivation of green awareness and the development of green skills among their employees. Fourth, these top managers and/or HR managers can encourage their employees to express green-/environmentally friendly behaviors as well as sufficiency-based consumption behaviors. In fact, these top managers and/or HR managers can foster their employees to reduce energy consumption, including electricity and water, to conserve these types of energy for young generations. Fifth, these top managers and/or HR managers can adopt and implement green human resource management (GHRM) practices consisting of green recruitment and selection, green training and development, green performance management, green pay and rewards and green employee relations in their firms to upgrade both the environmental and social performances of firms. Finally, these top managers and/or HR managers must take serious actions regarding the implementation of environmental/green management policies and practices within their firms in order to facilitate the movement of the country toward the bioeconomy, circular economy, and green economy (BCG economy).Social implicationsThis paper provides social/policy implications for the government, vocational colleges and universities in Thailand, other developing countries and emerging market economies where the skill shortage problem is still severe. First, the government of each country should incorporate green/environmental policies into the national education policy and the long-term strategic plan of the country. Second, the government should continuously implement such national policy and strategic plan by encouraging government agencies, vocational colleges, universities, firms and NGOs to cooperate in developing and offering environmental/green management educational programs/curricula to produce graduates with suitable qualifications for those firms. Third, the government should encourage vocational colleges and universities to equip their students with green skills to be industry-ready in a real working context. Fourth, to alleviate the skill shortage problem in the labor market, the government should foster firms, especially private sector firms, to focus on the upskilling and reskilling of their existing employees. With this action, their existing employees will have green skills, be able to effectively perform green jobs and become an important driver to help the country move toward the BCG economy. Fifth, the government of each country should encourage firms to develop green-/environmentally friendly products by offering them various types of incentives, including tax reductions or tax exemptions. Sixth, the government should encourage universities in the country to sign a memorandum of understanding with leading research institutes and world-class digital technology companies such that these institutes and/or companies admit high-potential university students to work as trainees/entry-level employees for a certain duration. This action can ultimately facilitate knowledge transfer from these institutes and/or companies to those university students who will finally return to work in their home country. Seventh, the government, especially the Ministry of Education, should encourage vocational colleges and universities to teach students in the environmental/green management program based on real case studies/problems found across firms. In this way, graduates should be industry-ready to perform green jobs. Finally, the government must pay serious attention to the implementation of environmental/green management policies across levels within the country so that the transition of the country toward the BCG economy will finally come true in the future.Originality/valueThis paper contributes to the SHRM, comparative institutional perspectives on HR strategies and practices, and the literature on the green economy and the development of green skills in firms in the following ways. First, this paper focuses on examining how the institutional context of Thailand shapes the development of green knowledge and skills among employees across firms in Thailand. In this regard, the paper aims to fill the gap in the literature on strategic HRM and comparative institutional perspectives on HR strategies and practices as proposed by Batt and Banerjee (2012) and Batt and Hermans (2012), who suggested that the literature on strategic HRM should go beyond the organizational context and examine how firms adopt and implement HR practices in response to the national institutional context. Second, the paper aims to extend the literature on the green economy regarding the roles played by institutional factors in shaping the development of green knowledge and skills across firms. Finally, strategic HRM, comparative institutional perspectives on HR strategies and practices and green economy studies have overlooked the under-researched country of Thailand. Most studies in these three areas focus more on developed countries. Thus, the findings of this paper should extend the literature on those areas regarding the development of green skills among employees across firms in response to the Thai institutional context.